In January, gasoline cost $1.05 per gallon. In July, gasoline cost $1.20 per gallon. Find the percent of increase.
Would the answer for this question be 14.3?
And how do you do percent of decrease?
The original cost of a computer is $900. If the price is decreased by 15%, what is the sale price?
I need help with this question(:
Adv. Math - bobpursley, Thursday, February 19, 2009 at 9:18pm
percent (increase or decrease) is
Percent= (final-initial)/initial * 100
fifteen percent of 900 is 130 dollars.
so the cost is 900-130 dollars
price=(100-percentdecrease)/100 * 900
Adv. Math - Chopsticks, Thursday, February 19, 2009 at 9:20pm
bob, this looks kind of like exponential growth and exponential decay, is it? I was just wondering since we just started on exponential decay today.